DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS WITHIN DARKNESS
That person was me, I suppose.
And yeah, I've considered the things you've said, too. That maybe there's more to it, because we didn't get to hear what kind of Darkness Vanitas wants to be, in which realm, with what purpose, we don't get to hear why Ventus first urges him to choose for himself and then just goes "Okay", as if he understands something that Sora and the player aren't supposed to understand (yet), or why there's nothing after Sora saying "how is this okay?!"
There's a ton of things this could mean. Unlike most of the other members, Vanitas also didn't really look defeated to me, as in on the brink of death. It was rather like he decided "this isn't worth it", and finally gave up. Maybe he keeps being "Ventus's shadow", like he claimed, lingering in the darkness to balance out his light. But that's what angers me so much: It's all maybe and possibly, but since that's his very last scene, the only thing that suggests there being more to it is the fact that Chirithy does find back to Ventus, somehow, thus indicating that we will still learn more about his importance to the UX plot.
Like you, I'm hoping there's more to it, and I certainly headcanon that there is, because I'm not ready to accept so little of a conclusion for Vanitas, but I'm also not sure if this is simply wishful thinking and Nomura, at the end of the day, simply didn't care to give him a fair ending, after almost everyone else got some sort of redemption or "chance at a new life", with Sora even offering them to have a new start once they meet again.
HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER! HEY, BROTHER!
I feel you so much. It's so hard to accept what he got but we still have to endure it. All in all, there's always been those little tidbits about Vanitas that kept me wondering if there was more to it.
First of all, there's the fact that although he's Ventus, he's also somehow independent enough to exist on his own? He was supposed to only be his Darkness, but at the prologue for BBS we know Xehanort did not expect Ven to survive through linking his heart with Sora, so somehow it's possible for the Darkness in someone to exist on their own without being a Heartless?
Then, there's also the fact that the Ventus we fight in KH3 is, like all others, a Replica from the past. So the Ventus we rescue and fight alongside in KH3 is completed Ven who already has Vanitas back into his heart.
The ending seems to imply that Ven has got some, if not all of his memories back. If that extends back to only after he was found by Xehanort or if it includes his time as a Dandelion we have yet to know, but it brings even more questions:
What is his relationship with Xehanort, exactly? We see no closure on that whatsoever and they never talk about how he was his apprentice before going to Eraqus. That was already a plothole in BBS, but it's even more so here.
It's even more interesting when we think of how Xehanort never seemed to consider him a possible new vessel even as Vanitas, while it's pretty clear he intented to use Terra for that same purpose.
Considering the open plot we have with Xehanort's pilgrimage implied in the Secret Reports and the whole deal with the land of Keyblade Masters we fight Xehanort in (Sorry, it'll take a while for me to remember that name) and whatever happened to it, I'm hoping the whole Ventus thing has more to it than what we know of.